CVE-2026-1103: AIKTP WordPress Auth Bypass Vulnerability

CVE-2026-1103 Overview

CVE-2026-1103 is a missing authorization vulnerability in the AIKTP plugin for WordPress that allows authenticated users with minimal privileges to access administrative tokens. The vulnerability exists in the /aiktp/getToken REST API endpoint, which uses an inadequate permission callback that only verifies if a user is logged in, without checking for administrative capabilities. This flaw enables attackers with Subscriber-level access to retrieve the administrator's aiktpz_token access token.

Critical Impact

Authenticated attackers with low-privilege accounts (Subscriber-level or above) can retrieve administrator access tokens, enabling them to create posts, upload media files, and access private content with administrative privileges.

Affected Products

• AIKTP Plugin for WordPress versions up to and including 5.0.04

Discovery Timeline

• 2026-01-24 - CVE CVE-2026-1103 published to NVD
• 2026-01-26 - Last updated in NVD database

Technical Details for CVE-2026-1103

Vulnerability Analysis

This vulnerability is classified as CWE-862 (Missing Authorization), a common weakness in web applications where access control checks are absent or inadequate. The AIKTP plugin implements a REST API endpoint at /aiktp/getToken that exposes sensitive administrative tokens. While the endpoint does perform authentication—verifying that a user is logged in via the verify_user_logged_in permission callback—it fails to implement proper authorization checks to verify that the authenticated user actually has administrative capabilities.

The consequence of this authorization bypass is significant: any authenticated user, including those with the lowest privilege level (Subscriber), can access the administrator's aiktpz_token. This token serves as an access credential for administrative operations within the plugin, allowing attackers to perform privileged actions such as creating posts, uploading files to the media library, and accessing private content.

Root Cause

The root cause is the use of an insufficient permission callback function (verify_user_logged_in) for the REST API endpoint. This callback only checks whether a user is authenticated (logged in) but does not verify if the user has the necessary administrative role or capabilities. Proper implementation would require checking for specific capabilities using WordPress functions like current_user_can('manage_options') or similar administrative capability checks.

Attack Vector

The attack vector is network-based and requires low privileges. An attacker must first obtain valid Subscriber-level credentials on the target WordPress site, either through legitimate registration (if open registration is enabled) or through credential compromise. Once authenticated, the attacker can directly access the vulnerable /aiktp/getToken REST API endpoint to retrieve the administrator's access token. This token can then be used to perform administrative actions within the plugin's functionality.

The vulnerability is straightforward to exploit as it requires no special conditions beyond basic authentication. The vulnerable code can be examined in the WordPress Plugin Code Line 123 and WordPress Plugin Code Line 143 references.

Detection Methods for CVE-2026-1103

Indicators of Compromise

• Unusual REST API requests to /wp-json/aiktp/getToken from low-privilege user accounts
• Subscriber-level accounts making administrative-level content changes such as post creation or media uploads
• Unexpected access to private or draft content by non-administrative users
• Authentication logs showing low-privilege accounts accessing administrative plugin functionality

Detection Strategies

• Monitor WordPress REST API access logs for requests to the /aiktp/getToken endpoint from non-administrative users
• Implement web application firewall (WAF) rules to detect and alert on suspicious token retrieval attempts
• Audit user activity logs for privilege escalation patterns where Subscriber-level accounts perform administrative actions
• Review access patterns to the aiktpz_token and correlate with user privilege levels

Monitoring Recommendations

• Enable detailed logging for WordPress REST API endpoints, particularly those related to authentication and token management
• Set up alerts for any Subscriber or Contributor-level accounts accessing administrative endpoints
• Regularly audit plugin activity logs for unusual content creation or media upload patterns from low-privilege accounts
• Monitor for changes in post authorship or content access patterns that may indicate token misuse

How to Mitigate CVE-2026-1103

Immediate Actions Required

• Update the AIKTP plugin to the latest patched version immediately
• Audit all user accounts with Subscriber-level or above access for suspicious activity
• Rotate the aiktpz_token after applying the patch to invalidate any potentially compromised tokens
• Review recently created posts, uploaded media, and accessed private content for unauthorized activity

Patch Information

A security patch is available through the WordPress plugin repository. The patch details can be found in the WordPress Plugin Changeset Details. Organizations should update to a version newer than 5.0.04 to remediate this vulnerability. Additional vulnerability details are available in the Wordfence Vulnerability Report.

Workarounds

• Temporarily disable the AIKTP plugin until the patch can be applied if immediate updating is not possible
• Restrict user registration on WordPress sites to prevent attackers from easily obtaining Subscriber-level accounts
• Implement additional access controls at the web server or WAF level to block requests to the vulnerable endpoint from non-administrative users
• Audit and remove unnecessary Subscriber-level accounts to reduce the attack surface

# Disable the plugin temporarily via WP-CLI if patching is not immediately possible
wp plugin deactivate aiktp

# After patching, rotate the token by regenerating it through the plugin settings
# or by clearing the relevant option in the database
wp option delete aiktpz_token